nios2: 10m50: change to ns16550 uart

Change to ns16550 uart for 10m50 devboard based on a new
Altera release.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/nios2/dts/10m50_devboard.dts b/arch/nios2/dts/10m50_devboard.dts
index e89dbb2..05eac30 100644
--- a/arch/nios2/dts/10m50_devboard.dts
+++ b/arch/nios2/dts/10m50_devboard.dts
@@ -262,6 +262,6 @@
 
 	chosen {
 		bootargs = "debug console=ttyS0,115200";
-		stdout-path = &uart_0;
+		stdout-path = &a_16550_uart_0;
 	};
 };
diff --git a/configs/10m50_defconfig b/configs/10m50_defconfig
index 1919502..0d18e8d 100644
--- a/configs/10m50_defconfig
+++ b/configs/10m50_defconfig
@@ -22,6 +22,6 @@
 CONFIG_ALTERA_QSPI=y
 CONFIG_DM_ETH=y
 CONFIG_ALTERA_TSE=y
-CONFIG_ALTERA_UART=y
+CONFIG_SYS_NS16550=y
 CONFIG_TIMER=y
 CONFIG_ALTERA_TIMER=y
diff --git a/include/configs/10m50_devboard.h b/include/configs/10m50_devboard.h
index 48d5063..8a91cdb 100644
--- a/include/configs/10m50_devboard.h
+++ b/include/configs/10m50_devboard.h
@@ -20,6 +20,7 @@
  */
 #define CONFIG_BAUDRATE			115200
 #define CONFIG_SYS_CONSOLE_INFO_QUIET	/* Suppress console info */
+#define CONFIG_SYS_NS16550_MEM32
 
 /*
  * Flash